Try the blocks first and see where that gets ya. They are very cheap, so if it does not work then you can always put it out in the house.
growbe Reviewed by growbe on . Interesting odor control method. Anyone ever tried this to manage the smell before? odor removing machine - Marijuana Growing it looks like it could work and it interests me, as i wont have to put it on to to the ventilatin of my grow box. Rating: 5